Datasheet LTC2412 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 2-Channel Differential Input 24-Bit No Latency ∆Σ ADC |
| 页数 / 页 | 38 / 3 — CONVERTER. CHARACTERISTICS The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 567 Kb |
| 文件语言 | 英语 |
CONVERTER. CHARACTERISTICS The. denotes the specifications which apply over the full operating
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LTC2412
CONVERTER CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Common Mode Rejection DC 2.5V ≤ REF+ ≤ VCC, REF– = GND, l 130 140 dB GND ≤ IN– = IN+ ≤ VCC (Note 5) Input Common Mode Rejection 2.5V ≤ REF+ ≤ VCC, REF– = GND, l 140 dB 60Hz ±2% GND ≤ IN– = IN+ ≤ VCC, (Notes 5, 7) Input Common Mode Rejection 2.5V ≤ REF+ ≤ VCC, REF– = GND, l 140 dB 50Hz ±2% GND ≤ IN– = IN+ ≤ VCC, (Notes 5, 8) Input Normal Mode Rejection (Notes 5, 7) l 110 140 dB 60Hz ±2% Input Normal Mode Rejection (Note 5, 8) l 110 140 dB 50Hz ±2% Reference Common Mode 2.5V ≤ REF+ ≤ VCC, GND ≤ REF– ≤ 2.5V, l 130 140 dB Rejection DC VREF = 2.5V, IN– = IN+ = GND (Note 5) Power Supply Rejection, DC REF+ = 2.5V, REF– = GND, IN– = IN+ = GND 120 dB Power Supply Rejection, 60Hz ±2% REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 7) 120 dB Power Supply Rejection, 50Hz ±2% REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 8) 120 dB
ANALOG INPUT AND REFERENCE The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IN+ Absolute/Common Mode IN+ Voltage l GND – 0.3 VCC + 0.3 V IN– Absolute/Common Mode IN– Voltage l GND – 0.3 VCC + 0.3 V VIN Input Differential Voltage Range l –VREF/2 VREF/2 V (IN+ – IN–) REF+ Absolute/Common Mode REF+ Voltage l 0.1 VCC V REF– Absolute/Common Mode REF– Voltage l GND VCC – 0.1 V VREF Reference Differential Voltage Range l 0.1 VCC V (REF+ – REF–) CS (IN+) IN+ Sampling Capacitance 18 pF CS (IN–) IN– Sampling Capacitance 18 pF CS (REF+) REF+ Sampling Capacitance 18 pF CS (REF–) REF– Sampling Capacitance 18 pF IDC_LEAK (IN+) IN+ DC Leakage Current CS = VCC = 5.5V, IN+ = GND l –10 1 10 nA IDC_LEAK (IN–) IN– DC Leakage Current CS = VCC = 5.5V, IN– = 5.5V l –10 1 10 nA IDC_LEAK (REF+) REF+ DC Leakage Current CS = VCC = 5.5V, REF+ = 5.5V l –10 1 10 nA IDC_LEAK (REF–) REF– DC Leakage Current CS = VCC = 5.5V, REF– = GND l –10 1 10 nA 2412fa For more information www.linear.com/LTC2412 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuit Applications Information Package Description Revision History Typical Application Related Parts
CONVERTER CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Common Mode Rejection DC 2.5V ≤ REF+ ≤ VCC, REF– = GND, l 130 140 dB GND ≤ IN– = IN+ ≤ VCC (Note 5) Input Common Mode Rejection 2.5V ≤ REF+ ≤ VCC, REF– = GND, l 140 dB 60Hz ±2% GND ≤ IN– = IN+ ≤ VCC, (Notes 5, 7) Input Common Mode Rejection 2.5V ≤ REF+ ≤ VCC, REF– = GND, l 140 dB 50Hz ±2% GND ≤ IN– = IN+ ≤ VCC, (Notes 5, 8) Input Normal Mode Rejection (Notes 5, 7) l 110 140 dB 60Hz ±2% Input Normal Mode Rejection (Note 5, 8) l 110 140 dB 50Hz ±2% Reference Common Mode 2.5V ≤ REF+ ≤ VCC, GND ≤ REF– ≤ 2.5V, l 130 140 dB Rejection DC VREF = 2.5V, IN– = IN+ = GND (Note 5) Power Supply Rejection, DC REF+ = 2.5V, REF– = GND, IN– = IN+ = GND 120 dB Power Supply Rejection, 60Hz ±2% REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 7) 120 dB Power Supply Rejection, 50Hz ±2% REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 8) 120 dB
ANALOG INPUT AND REFERENCE The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IN+ Absolute/Common Mode IN+ Voltage l GND – 0.3 VCC + 0.3 V IN– Absolute/Common Mode IN– Voltage l GND – 0.3 VCC + 0.3 V VIN Input Differential Voltage Range l –VREF/2 VREF/2 V (IN+ – IN–) REF+ Absolute/Common Mode REF+ Voltage l 0.1 VCC V REF– Absolute/Common Mode REF– Voltage l GND VCC – 0.1 V VREF Reference Differential Voltage Range l 0.1 VCC V (REF+ – REF–) CS (IN+) IN+ Sampling Capacitance 18 pF CS (IN–) IN– Sampling Capacitance 18 pF CS (REF+) REF+ Sampling Capacitance 18 pF CS (REF–) REF– Sampling Capacitance 18 pF IDC_LEAK (IN+) IN+ DC Leakage Current CS = VCC = 5.5V, IN+ = GND l –10 1 10 nA IDC_LEAK (IN–) IN– DC Leakage Current CS = VCC = 5.5V, IN– = 5.5V l –10 1 10 nA IDC_LEAK (REF+) REF+ DC Leakage Current CS = VCC = 5.5V, REF+ = 5.5V l –10 1 10 nA IDC_LEAK (REF–) REF– DC Leakage Current CS = VCC = 5.5V, REF– = GND l –10 1 10 nA 2412fa For more information www.linear.com/LTC2412 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuit Applications Information Package Description Revision History Typical Application Related Parts